attempt
v. 试图;尝试;企图 to try to do sth， especially sth difficult
attempt to do sth:
(2019全国I)
Every year about 40,000 people attempt to climb Kilimanjaro， the highest mountain in Africa.
每年大约有四万人尝试攀登非洲的最高峰一一乞力马扎罗山。
He did not attempt the last question in the examination.
在考试中他放弃了最后一道题。
n. 试图;尝试;努力(try)
All attempts by the experts to cure him failed.
专家们治疗他的所有努力都失败了。
The town is banning plastic bags in an attempt to help the environment.
为改善环境，这个城镇禁用塑料袋。
He made no attempt to hide his feelings.
他毫不掩怖自己的情感。
attempted adj. (只用于名词前)企图的;未遂的:
attempted murder谋杀未遂
attempted robbery 抢劫未遂